I'm trying to learn how the HTTP protocol works. When aserver has many clients accessing it at the same time. Say 200 people. How does it maintain connection with 200 different concurrent client using only port 80? From what I've read and if I understand this correctly, a TCP/UDP port a mainta...more >>

I have created a comboBox on my dialog box and have populated the drop down list. The drop down list is of type "DropDown". However, when I select the list using the scroll control, the drop down list does not appear. Any suggestions on how to overcome this? Thanks in advance for the help....more >>

In order to update the date properly, should I add anything before and after the variable dte_send_again? str_update_command = "UPDATE web_tbl_emails SET dte_resend= " + dte_send_again +", str_mail_to='"+"ccc" + "' WHERE lng_id = "+ lng_id.ToString (); ...more >>

-------------------------------------------------------------------------------- I have a problem in updating certain data in an SQL table. Hope, I have the right syntax. It accepts the commands. However, the data is never updated. Placed below is the code. Thanks. ===================...more >>

Hi, I would like to ask if its at all possible for a vb6 or a vc++6 application to access a DLL created in dotnet. Please help. If possible please provide info. Thanks in advance -- PH...more >>

Scenario =========== (1) You write a program using some programming language, say, C#. (2) You make an assembly out of the program by compiling it. It is a single module assembly. (3) You create a setup program for this. (4) During the setup, the user, an administrator group user, sele...more >>

I want to have an ASP.Net application to connect to a SQL Server database. I can’t use Active Directories or Windows authentication (network security!). So I want to use Forms authentication to allow the user to enter their SQL Server username and password, check their permissions (from a ...more >>

Hi, I have few questions about the format of .NET assemblies: Are all .NET assemblies created in Portable Executable (PE) format only or is there any other format supported? If so, which format gives better performance? Is Common Object File Format (COFF) related to .NET assemblies? ...more >>

Why could it be that i am able to use StreamWriter from a windows application but not from a web application? I am getting an unauthorizedaccessexception and the exception message is "Access to the path... is denied". the code i'm using is very straightforward: using System.IO; .......more >>

-------------------------------------------------------------------------------- What is the syntax to compare a date field retrieved from a table to the current date? row.ItemArray.GetValue(10) > System.Datatime.now()?????????????...more >>

In the below listed code, instead of using GetValue(2), is there any way to retrieve fields by calling the field name itself? (for example GetValue("str_mail_from") ?????) ========================================================myda = new SqlDataAdapter ("SELECT lng_id,lng_clientid,str_mail...more >>

I created two classes called "site" and "Sites" which use 'BinaryFormatter' to load and save class information to a disk file. In my test application all works fine but when implementing into another application the code fails with a message indicating there is a missing assembly. The missing ass...more >>

Hi!! I'd like to dessing a DropDownList with 20 colors different among them and I don't want to appear the name of the color, only the color. The 20 color i'll take from a DatabBase, and on the value of the DropDownList will be an Hexadecilmal number taken from the DatabBase. How can I change...more >>

<System.Runtime.InteropServices.DllImport("advapi32.dll", EntryPoint:="RegEnumKeyA", _ SetLastError:=True, CharSet:=CharSet.Unicode, ExactSpelling:=True, _ CallingConvention:=CallingConvention.StdCall)> _ Private Shared Function RegEnumKey(ByVal hKey As Long, _ ByVal dwIndex As Long, ByVal l...more >>

I wrote a .NET windows service,and change the type to Interactive Services. In method OnStart ,I start a .NET application. But after I logout,that application terminates unlike the behavior of Win32 app. How can I keep it running ?...more >>

I have a C# solution with a dozen or so projects. There are references between the projects, and these were all added as "Project" references. Everything's been working fine for months, but suddenly today it all collapsed in a heap. I get a mysterious error when running the project: "T...more >>

Hi, Any idea how to fill a dropdownlist thru dataset I done like this ddLst1.DataSource = myDataSet ddLst1.DataMember = myDataSet.Tables(0).Columns(1).Caption ddLst1.DataValueField = myDataSet.Tables(0).Columns(0).Caption but it is not working ; my dropdown list showing blanck pleas...more >>

Hi, i wonder if someone can explain the following... Create new Console application... static void Main(string[] args) { Console.WriteLine(args[0]); } Run it with the following param ConsoleApplication1.exe test$^ On my Win XP and NET 1.1 i receive the output: test$ ^ disappear...more >>

Hi all... I have been using InstallShield to build our installers for our products. However I just found out that our version of InstallShield doesn't support 64-bit deploys and it costs $700 to upgrade to the version that does. I really don't need many of the features of a full installer ...more >>

I need to write code to handle time limited licencing of my software. Can anyone give me suggestions where to start looking for ideas?...more >>